5kg filament spool central axis support frame (60 jin rice bucket)

It seems this is the only type of 5kg filament spool holder available; I searched and couldn't find anyone else making it, so I designed one myself, which took me two to three months (I never had enough time).

I bought a 60 jin rice bucket; the 40 jin (or possibly 30 jin) one from the same brand wasn't quite big enough after a month of trying. Available on Taobao. The rice bucket is just for sealing; the model is sturdy enough to be used directly (though not aesthetically pleasing).

You need to buy an M20*190 smooth rod yourself (recommended; other materials like wooden sticks might not be precise enough, preventing insertion or causing resistance). It costs a few yuan with free shipping. Printing the cylinder requires multiple walls, as 5KG is very heavy. You also need to adjust tolerances yourself. Also available on Taobao.

You also need 4x 608 bearings (I think there are printable ones, but I haven't tried them), and 4x M8*38 dowel pins (these are actually smooth rods, and printable ones might work too). You'll need a bit of force to snap them in during assembly. Also available on Taobao.

Assembly is front and back. An air vent is needed (this probably can't be printed, but for printer enthusiasts, especially with large filament spools, not many people lack one). Just melt a hole with something hot and screw it on.

After carefully (just kidding) casual cutting, both A1 and A1 mini can print it, without affecting assembly or use.

The above is all nonsense. I will read comments, but may not necessarily make changes (because I'm lazy).

Items you can buy in total:

Rice bucket*1   

https://e.tb.cn/h.7jTnYHoksftnAFJ?tk=n4FBUXkUakM CZ007

M20*190 smooth rod*1    

https://e.tb.cn/h.7jK84fDZs2DwAcs?tk=TQs6UXk3qMy

M8*38 smooth rod*4   

https://e.tb.cn/h.7jTnYHoksftnAFJ?tk=n4FBUXkUakM

608 bearings*4

Pneumatic connector*1